CharacterData: replaceData() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The replaceData() method of the CharacterData interface removes a certain number of characters of the existing text in a given CharacterData node and replaces those characters with the text provided.

Syntax

characterData.replaceData(offset, count, data)

Parameters

offset: The number of characters from the start of the data to insert at. 0 is the first character of the string.
count: The number of characters to replace with the provided data.
data: The data to insert.

Return value

None.

Exceptions

IndexSizeError DOMException: Thrown if offset or count is negative or offset is greater than the length of the contained data.

Example

html

<span>Result: </span>A long string.

const span = document.querySelector("span");
const textNode = span.nextSibling;

textNode.replaceData(2, 4, "replaced");

Specifications

Specification
DOM Standard # dom-characterdata-replacedata

Browser compatibility

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